Cosima WIMMERS is a Foreign Lawyer at the Firm and a solicitor of the Courts of England and Wales. She is also a Registered Foreign Lawyer in Singapore. Cosima’s practice focuses on international arbitration and cross-border dispute advisor, with particular experience in matters involving complex procedural frameworks, multi-jurisdictional issues, and both public and private international law.
Cosima has worked on a wide range of commercial and investor–state arbitrations governed by SIAC, ICC, HKIAC, UNCITRAL, and CAS Rules. These disputes have spanned sectors such as energy, infrastructure, procurement, and intellectual property, and involved high-value claims across multiple jurisdictions. In her previous role supporting a senior arbitrator in Singapore, she was closely involved in the administration and coordination of arbitral proceedings across multiple jurisdictions. Her responsibilities included high-level analysis of substantive and evidential issues, review of party submissions and documentary records, legal research, and assistance in drafting of orders.
Cosima’s legal education and professional experience span both civil and common law systems. She holds two Master of Laws degrees, one from the National University of Singapore in International Arbitration and Dispute Resolution, and one from the Graduate Institute in Geneva (MIDS), where she focused on international dispute settlement. She obtained her LL.B. in Global Law from Tilburg University in the Netherlands, and completed an exchange at the University of Hong Kong with a focus on commercial dispute resolution in China.
Her comparative legal training allows her to engage comfortably with diverse legal cultures and procedural traditions. She is fluent in English and German, and conversant in Dutch.
Case Highlights
International Arbitration
- Assisted the tribunal in a multi-billion-dollar infrastructure construction arbitration seated in Singapore involving claims of delay, variation, and defective works.
- Supported the tribunal in a sports arbitration seated in Switzerland under the CAS Rules concerning regulatory and eligibility issues.
- Assisted the tribunal in a PCA-administered investor–state arbitration concerning a renewable energy infrastructure dispute between a European investor and an African state.
- Assisted the tribunal in a commercial arbitration seated in Singapore involving a centimillion-dollar dispute between a Southeast Asian state and a multinational satellite infrastructure company.
- Acted as part of counsel team in an insurance-related arbitration seated in Singapore involving complex policy interpretation and coverage disputes.
- Assisted the tribunal in a joint venture dispute seated in Singapore concerning shareholder rights and cross-border management control.
- Supported the tribunal in a Singapore-seated arbitration involving cross-border intellectual property licensing and enforcement issues.
Education
- LL.M. in International Dispute Settlement (MIDS), Graduate Institute / Université de Genève
- LL.M. in International Arbitration and Dispute Resolution, National University of Singapore
- LL.B. in Global Law, Tilburg University
Appointments
- Solicitor, Courts of England and Wales
- Registered Foreign Lawyer, Singapore
Find a Lawyer
Search for a lawyer by name or by area of expertise